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The AAPG/Datapages Combined Publications Database

Showing 20,259 Results. Searched 197,434 documents.

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Finite Difference Modelling: Part III: Time-Step n-Tupling

Lasse Amundsen, Ørjan Pedersen, Martin Landrø

GEO ExPro Magazine

... and spatial derivatives, and s is the source term. For acoustic wave propagation, L=c2 2, where c=c(x) is the velocity, and 2 is the Laplacian given...

2018

Abstract: Physical Modeling for Azimuthal AVO Over a Simulated Fractured Medium; #90174 (2014)

Faranak Mahmoudian, Gary F. Margrave, and Joe Wong

Search and Discovery.com

.... Introduction Seismic modeling has an important role in improving our understanding of seismic wave propagation and in verification of new algorithms...

2014

Key Technologies for Processing of Seismic Data in Gas Cloud Area, Bohai Bay Basin, #42093 (2017).

Xia Tongxing, Ming Jun, Liu Lei, Zhou Xuefeng, Liu Hongxing, Liu Xuetong

Search and Discovery.com

..., or by using a special seismic acquisition geometry to avoid propagation of seismic wave through gas cloud. By optimizing conventional P-wave processing...

2017

Composite (VS/VP) Ratios in Transversely Isotropic Geology: Possible Aid for Identifying Organic Contamination in Porous Rocks

Alvin K. Benson

Environmental Geosciences (DEG)

... motion in line with the direction of propagation, and (2) a shear wave with particle motion perpendicular to the direction of propagation. At each boundary...

1996

Abstract: Determining Scale Properties from Seismic Transmission Responses: A Modeling Study; #90171 (2013)

Emmanuel L. Bongajum and Bernd Milkereit

Search and Discovery.com

... CSPG/CSEG/CWLS GeoConvention 2009, Calgary, Alberta, Canada, May 4-8, 2009 studies that will include explosive sources and wave propagation...

2013

Abstract: Determining Scale Properties from Seismic Transmission Responses: A Modeling Study; #90171 (2013)

Emmanuel L. Bongajum and Bernd Milkereit

Search and Discovery.com

... CSPG/CSEG/CWLS GeoConvention 2009, Calgary, Alberta, Canada, May 4-8, 2009 studies that will include explosive sources and wave propagation...

2013

Abstract: Seismic Evidence of Formation Damage in the Lower Colorado Group Shales; #90172 (2014)

Jeremy Gallop

Search and Discovery.com

..., 203-218. Schoenberg M. and Douma, J. 1988, Elastic wave propagation in media with parallel fractures and aligned cracks: Geophys. Prosp. 36, 571-590...

2014

Overburden Compensation: A Pragmatic Solution to the Frequency Dependent Amplitude Losses Associated With Laterally Variable Overburden

Swee Leng NG, Martin Bayly

Indonesian Petroleum Association

... in many parts of the world and especially in Asian basins. These "washouts" are typically the result of variable seismic wave propagation through complex...

2008

Abstract: Building Better Models … Making Full Use of Petrophysical Data; #90211 (2015)

Elizabeth L’Heureux

Search and Discovery.com

... models to simulate 3D elastic and viscoelastic seismic wave propagation in random media. Seismic models thus far have shown that exploration target...

2015

DAS: The survival toolkit for geophysicists in the wilderness of unconventionals

Ge Jin

International Meeting for Applied Geoscience and Energy (IMAGE)

... between borehole fluid and surrounding casing or rocks. We observe a substantial difference of tube-wave propagation between stimulated and unstimulated...

2022

Estimation of Seismic Attenuation in the Delaware Basin Using Peak Frequencies

Małgorzata Drwiła, Leo Eisner, Zuzana Jechumtalová, Denis Anikiev, Randy Keller

Unconventional Resources Technology Conference (URTEC)

... be characterized by attenuation factors (Q) of ranging between 90 and 100 (with uncertainty of 30) for P-wave and S-waves, respectively. The ratio...

2018

New perturbation-based traveltime approximation for elastic VTI media

Shibo Xu, Alexey Stovas, Xingguo Huang

International Meeting for Applied Geoscience and Energy (IMAGE)

... University Summary We propose a perturbation-based approximation for P- and S-wave traveltime in a transversely isotropic medium with a vertical symmetry...

2022

Solving Shear-Wave Splitting in PS Data Processing of 3D 4C OBN Seismic Survey Offshore Nunukan, Indonesia

Andreas Waluyo, David Tilling, Supriyono, Rio Sebayang, Agus Warmar Rasa

Indonesian Petroleum Association

...). This stress exhibits azimuthal anisotropy in seismic waves, defined as the dependence of seismic wave speeds on propagation azimuth. In homogenous...

2020

Mainstream Mantle Convection: a Geologic Analysis of Plate Motion: DISCUSSION

Z. F. Danes

AAPG Bulletin

... value of the horizontal tidal perturbation in g; x is the east-west coordinate; c is the speed of propagation of the surface wave; and t is time...

1973

Abstract: Elastodynamic FWI Efficiency Study With Partial Stacking in 2D; #90224 (2015)

Vladimir N. Zubov, Gary F. Margrave, and Michael P. Lamoureux

Search and Discovery.com

... signature, assumed known for simplicity. The misfit data block is a forward wave propagation using the estimated values for the physical parameters, while...

2015

Ultrasonic pulse velocities and dynamic elastic constants of sandstones from the Semanggol Formation, Beris Dam, Kedah Darul Aman

J. K. Raj

Geological Society of Malaysia (GSM)

.../s, and the coarse grained sandstone with velocities of 2.477, and 5.612, km/s, respectively. The medium grained sandstones have compressional and shear wave...

2021

Elastic impedance parameterization and inversion for fracture quasi-weaknesses and quasi-Thomsen parameters in fractured reservoirs with monoclinic symmetry

Wei Xiang, Xingyao Yin, Kun Li, Zhengqian Ma

International Meeting for Applied Geoscience and Energy (IMAGE)

... fractures in such monoclinic media because of the complexity of seismic wave propagation. Thomsen (1986) defined three anisotropic parameters...

2023

Internal-Wave Currents as a Mechanism to Account for Large Sand Waves in Navarinsky Canyon Head, Bering Sea

H. A. Karl, D. A. Cacchione, P. R. Carlson

Journal of Sedimentary Research (SEPM)

...Internal-Wave Currents as a Mechanism to Account for Large Sand Waves in Navarinsky Canyon Head, Bering Sea H. A. Karl, D. A. Cacchione, P. R...

1986

Application of Seismography to Geological Problems

Eugene McDermott

AAPG Bulletin

... the vibration of the particles is in the direction of wave propagation. Transverse waves also are generated in which the particles of the medium vibrate...

1931

Abstract: Modelling Near-field Effects in VSP-based Q-estimation Part 1: Theoretical Developments; #90171 (2013)

Arnim B. Haase and Robert R. Stewart

Search and Discovery.com

... with spherical wave models: CREWES Research Report, Volume 19. Kjartansson, E., 1979, Constant Q, wave propagation and attenuation: Journal...

2013

Abstract: Seismic Behaviour of CO2 Saturated Fontainebleau Sandstone under in Situ Conditions; #90224 (2015)

Mizanul Huq Chowdhury, Douglas R. Schmitt, and Randolf Kofman

Search and Discovery.com

..., the study of the effect of CO2 on seismic wave propagation is scientifically interesting because CO2 can exist in gas, liquid, and supercritical fluid...

2015

Characterization and simulation of transverse noise waves of a multisensor solid streamer

Viktor Smirnov, A. Sourice, J. Ribette, J. Mars, P. Herrmann

International Meeting for Applied Geoscience and Energy (IMAGE)

... characterization of these waves is proposed. Reviewing the classical model of transverse wave propagation, a new model of their velocity is obtained. This new...

2022

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